Add additional unannounced in notes rare drops to new content (for instance ody bosses), I'm talking really rare. Like 0.1%
One of the biggest empty feelings to a serious endgame player is to know you've capped out content, even if the drop rate is awful it will given a reason to keep doing it or a reason to be excited to see a loot drop from it when killing for mundane points (even if it's a pipe dream to get it).
I know some players will think they hate this suggestion, but in reality they won't. Almost all of us did content for years to get that random rare drops and it's always better to have a "mountain left to climb" than all "mountains climbed". Even Dyna D had it, with the rare armor drops.
FFXI needs rare additional drops added back into the game, everything is so obtainable and predictable these days. Heck they don't even need to be newly made items, you could add those lottery weapons as uber rare drops to content.
I saw a wow player a few days ago get a really rare mount, something he had been after for years and he was so happy.
The game needs DEFENDINNNGNG RINNG moments again.